Uses Crt;
Var i,n : integer //sửa thành: var i,n:integer;
Tong = Longint; //sửa thành: tong:longint;
Begin
Clrscr;
i = 0; Tong : = 0;// i:=0;
While i : = 0 do //i=0
Begin
if ( i mod 4 = 0 ) then
Tong : = Tong + 1;
i = i + 1; //i:=i+1; hoặc inc(i)
End. //end;
Writeln( Tong so chia het cho 4 :, Tong) //Writeln('Tong so chia het cho 4 :', Tong);
Readln;
End; //end.